Home / 87,836.40-121,211.64-49,597.52

Finding the Fourth Proportional to 87,836.40, 121,211.64 and 49,597.52

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Solution

The fourth proportional to 87,836.40, 121,211.64 and 49,597.52 is: 68,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.40 : 121,211.64 = 49,597.52 : x
  2. Step 2: Convert to fraction form
    87,836.40/121,211.64 = 49,597.52/x
  3. Step 3: Cross multiply
    87,836.40x = 121,211.64 × 49,597.52
  4. Step 4: Simplify right side
    87,836.40x = 6,011,796,133.07
  5. Step 5: Solve for x
    x = 6,011,796,133.07/87,836.40
  6. Step 6: Final answer
    x = 68,443.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.